1. What is the Torque Extension Formula?

The Torque Extension Formula calculates the torque at the wrench (T_wrench) based on the torque at the bolt (T_bolt), the length (L), and the extension (E). This formula is essential in mechanical engineering for determining the actual torque applied when using extension tools.

2. How Does the Calculator Work?

The calculator uses the Torque Extension Formula:

Where:

• \( T_{wrench} \) — Torque at the wrench (Nm)
• \( T_{bolt} \) — Torque at the bolt (Nm)
• \( L \) — Length (m)
• \( E \) — Extension (m)

Explanation: The formula accounts for the mechanical advantage or disadvantage when using extension tools, ensuring accurate torque application.

3. Importance of Torque Extension Calculation

Details: Accurate torque calculation is crucial for proper fastening, preventing under-torquing (which can lead to loosening) or over-torquing (which can cause damage or failure).

4. Using the Calculator

Tips: Enter T_bolt in Nm, L in meters, and E in meters. All values must be valid (T_bolt > 0, L > 0, E ≥ 0).

5. Frequently Asked Questions (FAQ)

Q1: Why is torque extension important?
A: It ensures that the correct torque is applied to the fastener, which is critical for safety and performance in mechanical assemblies.

Q2: What happens if E is zero?
A: If E is zero, T_wrench equals T_bolt, meaning no extension is used, and the torque applied is directly as measured.

Q3: Can E be larger than L?
A: Yes, but it will result in T_wrench being less than T_bolt, indicating a reduction in effective torque due to the extension.

Q4: What units should be used?
A: Consistent units must be used for all inputs (e.g., all in meters for length and extension, Nm for torque).

Q5: Is this formula applicable to all types of extensions?
A: This formula is generally applicable for rigid extensions. For flexible or non-rigid extensions, additional factors may need consideration.